A structural snapshot of an intermediate on the streptavidin-biotin dissociation pathway.
Freitag, S., Chu, V., Penzotti, J.E., Klumb, L.A., To, R., Hyre, D., Le Trong, I., Lybrand, T.P., Stenkamp, R.E., Stayton, P.S.(1999) Proc Natl Acad Sci U S A 96: 8384-8389
- PubMed: 10411884 
- DOI: 10.1073/pnas.96.15.8384
- Primary Citation of Related Structures:  
1SWS, 1SWT - PubMed Abstract: 
It is currently unclear whether small molecules dissociate from a protein binding site along a defined pathway or through a collection of dissociation pathways. We report herein a joint crystallographic, computational, and biophysical study that suggests the Asp-128 --> Ala (D128A) streptavidin mutant closely mimics an intermediate on a well-defined dissociation pathway ...